Mishimoto 6.4 Radiator Review

[buck russell]

Sorry for the confusion!

Well, for those that don't know there are two thermostats in the 6.4. One for 192 and one for 203.

 

[Mishimoto]

I think this reflects the efficiency of the cooler while in action, but nominal temps while cruising and normal driving should be dependent on the thermostat.

I was actually thinking about what Wayne brought up the other night... If cooler temps were the goal why not just a lower temp thermostat?? So based on what you've said above "during a highway pull" it will reflect how well the cooler actually dissipates the heat during heavy use. I think when you state it as you have above it makes sense, but from the earlier posts, I was a bit confused myself.

Correct. The all-aluminum construction of this radiator allows for more efficient heat dissipation. The thermostat controls the minimum temperature of the coolant, so it will not allow this radiator to over cool your truck. But this radiator will still keep your radiator at a lower, more consistent temperature, when under load.

 

[Mishimoto]

By the way, with the new radiator and intercooler. The front of your truck looks f***ing AWESOME with all of that bright a$$ aluminum!

I agree!

 

[Wayne]

Correct. The all-aluminum construction of this radiator allows for more efficient heat dissipation. The thermostat controls the minimum temperature of the coolant, so it will not allow this radiator to over cool your truck. But this radiator will still keep your radiator at a lower, more consistent temperature, when under load.

This is why I can see the trans running cooler, but not the engine. Isn't the stock unit all aluminum except for the end tanks? Which core is larger/thicker? Despite what the ladies say, size isn't everything. It's definitely part of the equation though. Maybe I missed a spec comparison. If so, sorry. **EDIT** I just went over the mishimoto specs on the opening post, and measured my stock one. Core dimensions appear to be identical to stock.

While I completely understand where you're coming from in this regard and that the temperature is mainly controlled by the t-stat, the numbers don't lie. When doing a highway pull from 45 to 80 my coolant spiked over 200F with the stock unit. When doing the same highway pull, the coolant stays at 196F with the mishimoto radiator. I don't really know how else to explain it to you, but facts are facts.

:bs:...or we could just say the "facts" you reported are misleading. If what you say actually occurred, and the radiator is to take the credit for the discrepancy in cooling temps, then the entire cooling system would have to heat up to to the point where the stock radiator is struggling to keep up. Either your stock radiator is a complete piece of crap, the t-stat(s) were a little slow to react, your data is off, or there was a different mechanical failure so long as what you are reporting is accurate. All a larger, or more efficient radiator will do for you is provide faster temp recovery, and better ability to keep the engine in ideal operating range. Sure, the coolant temp at the outlet of the radiator might be cooler, but that's not what you logged, is it? When testing intercooler efficiency, I had pyro probes at the inlet and outlet, ambient temp recordings, pulling a specific load up a specific hill, at a specific speed, with the A/C OFF, for a specific time that would be easy to duplicate for comparison between brands. The temps were recorded, as well as the temp drops to validate the effectiveness of the intercooler.

That 45-80 mph "pull" constitutes the top half of a freeway on-ramp merge. I would need to see a test that lasted longer than 5 seconds to validate the effectiveness of a radiator.

I would like to reiterate that I do like what I've seen of the Mishimoto radiators. The quality appears to be excellent, the the fitment of the one 6.0 unit I installed was great. I don't want to take anything away from that. There is a lot of good from your review. I just can't swallow the temp difference claim.

 

[buck russell]

Hey its cool, may as well call me Obama because apparently I'm a liar.

 

[Wayne]

Hey its cool, may as well call me Obama because apparently I'm a liar.

Hey, easy now. oke::grouphug: I have no doubt that a temp spike like you saw did occur. There are a lot of variables that could cause it though. It just appears that you're jumping to conclusions off of too little data. I do appreciate the review for what it is. If my stock one failed, there's a good chance I would get one of these thanks to the helpful information included here. Welded end tanks are a major plus to me, as well as knowing the core is the same size.

 

[buck russell]

Why should I be easy when someone is directly attacking my credibility? In one year of ownership, I've driven my truck over 20k miles and have numerous hours of real world data to back my claims. Hell, if you want, I'll even do data logging on my dashdaq if it makes you happier, but I'm sure you could find solace in just going to Church on Sunday.

If you ask Josh (dzlpwr) how neurotic I am about my temps and how much I freak out when they're just a smidge hot, you'll understand that what I'm saying isn't just a pile of crap from some slack jawed moron who loves his Ford.

 

[redx]

Alright,

Throwing this one into the mix here http://www.dieselpowerproducts.com/...-for-2008-2010-64l-ford-powerstroke-2508.aspx

Is this one any good? I bought it two years ago(didn't install until a month ago). I also upgraded rad hoses, thermostats, rad cap, etc. If its a total pos, well at least the two others here look solid!

 

[alradco]

Alright,

Throwing this one into the mix here http://www.dieselpowerproducts.com/...-for-2008-2010-64l-ford-powerstroke-2508.aspx

Is this one any good? I bought it two years ago(didn't install until a month ago). I also upgraded rad hoses, thermostats, rad cap, etc. If its a total pos, well at least the two others here look solid!

$919 for a plastic tank radiator?? Wow, I think I need to seriously look at raising our price on our 6.4 all aluminum radiator. There's people out there that think the higher the price, the better the product.

I'd imagine that one works just like stock. Looks like it at least.

 

[redx]

Yea, i agree alradco, my options at the time were limited, i picked it up locally for $650, which is not a huge loss(compared the ford OEM POS)

 

[Mishimoto]

This is why I can see the trans running cooler, but not the engine. Isn't the stock unit all aluminum except for the end tanks? Which core is larger/thicker? Despite what the ladies say, size isn't everything. It's definitely part of the equation though. Maybe I missed a spec comparison. If so, sorry. **EDIT** I just went over the mishimoto specs on the opening post, and measured my stock one. Core dimensions appear to be identical to stock.



:bs:...or we could just say the "facts" you reported are misleading. If what you say actually occurred, and the radiator is to take the credit for the discrepancy in cooling temps, then the entire cooling system would have to heat up to to the point where the stock radiator is struggling to keep up. Either your stock radiator is a complete piece of crap, the t-stat(s) were a little slow to react, your data is off, or there was a different mechanical failure so long as what you are reporting is accurate. All a larger, or more efficient radiator will do for you is provide faster temp recovery, and better ability to keep the engine in ideal operating range. Sure, the coolant temp at the outlet of the radiator might be cooler, but that's not what you logged, is it? When testing intercooler efficiency, I had pyro probes at the inlet and outlet, ambient temp recordings, pulling a specific load up a specific hill, at a specific speed, with the A/C OFF, for a specific time that would be easy to duplicate for comparison between brands. The temps were recorded, as well as the temp drops to validate the effectiveness of the intercooler.

That 45-80 mph "pull" constitutes the top half of a freeway on-ramp merge. I would need to see a test that lasted longer than 5 seconds to validate the effectiveness of a radiator.

I would like to reiterate that I do like what I've seen of the Mishimoto radiators. The quality appears to be excellent, the the fitment of the one 6.0 unit I installed was great. I don't want to take anything away from that. There is a lot of good from your review. I just can't swallow the temp difference claim.

You are correct, the dimensions of our radiator are the same as the factory radiator. The main benefits of this radiator are the all-aluminum construction, aluminum end tanks, and TIG welding. This radiator not only dissipates heat more effectively, but it's also stronger and more reliable than stock.

Because of the more efficient heat dissipation, our radiator is able to keep a consistently lower temperature than the stock radiator. Also, the engine coolant temp sensor is located on the block, not at the inlet or outlet of the radiator. His data is showing the consistent temperature that our radiator is keeping the coolant, which is in between the high and low temp thermostats.

 

[Wayne]

That's what I figured. If my "updated" stock unit ever goes, you guys are first on my list. I'm impressed with the quality & fit. Knowing the core is not smaller than stock is also confidence inspiring. Tig welded aluminum end tanks beat those crappy stock plastic crimped ones every time IMO. Keep up the good work.:thumbup:

 

[Mishimoto]

That's what I figured. If my "updated" stock unit ever goes, you guys are first on my list. I'm impressed with the quality & fit. Knowing the core is not smaller than stock is also confidence inspiring. Tig welded aluminum end tanks beat those crappy stock plastic crimped ones every time IMO. Keep up the good work.:thumbup:

Thanks! Let me know if you have any other questions, as I would be happy to help! :thumbsup: